HomeMy WebLinkAboutMiscellaneous - 31 JAY ROAD 8/30/2017 North Andover Wealth Department
Community and Economic Development Division
ONSITE WASTEWATER SYSTEM CONSTRUCTION NOTES
LOCATION INFORMATION
ADDRESS: 31 Jay Road MAP: 98A LOT: 56
INSTALLER: Todd Bateson
DESIGNER: Doug Smith
PLAN DATE: 7/8/14, Rev. 10/7114
BOH APPROVAL DATE ON PLAN: 10/16/14
INSPECTIONS
TANTS INSPECTION: 9/20/16
DATE OF BED BOTTOM INSPECTION: 9/20/16
DATE OF FINAL CONSTRUCTION INSPECTION: 9/29/16
DATE OF FINAL GRADE INSPECTION:
SITE CONDITIONS
® Contractor reports any changes to design plan
® Existing septic tank properly abandoned
® Internal plumbing all to one building sewer
® Topography not appreciably altered
Comments:
i
SEPTIC TANK
® Building sewer in continuous grade, on
compacted firm base
® Cleanouts per plan
Bottom of tank hole has 6" stone base
® Weep hole plugged
® 1500 gallon tank has been installed
H-10 loading
Monolithic tank construction
Watertightness of tank has been achieved by
visual testing
® Inlet tee installed, centered under access port
® Outlet tee installed, centered under access port
(gas baffle/effluent filter)
® 24" inch cover to within 6" of finish grade
installed over one access port
® Neoprene boots around inlet & outlet
Comments:
PUMP CHAMBER
® Bottom of tank hole has 6" stone base
® Weep hole plugged
1000 gallon Pump Chamber installed
® H-10 loading
® Monolithic tank construction
® inlet tee installed, centered under access port
® Pump(s) installed on stable base
® Alarm float working
® Pump On/Off floats working
® Separate onloff floats
® Drain hole in pressure line
® 24" cover at final grade installed over pump
access port
® Water tightness of tank has been achieved by
Visual testing
® Neoprene boots around inlet & outlet
Comments:
CONTROLPANEL
® Alarm & Pump are on separate circuits
® Alarm sounds when float is tripped
® Location of control panel: outside of house
® Alarm signal located outside of house
Comments:
DISTRIBUTION-BOX
® Installed on stable stone base
® H-20 D--Box
® Inlet tee (if pumped or X0.08'/foot)
® Hydraulic cement around inlet & outlets
® Observed even distribution
® Speed levelers provided (not required)
® Schedule 40 PVC Pipe
Comments:
SOIL ABSORPTION SYSTEM (General)
® Bottom of SAS excavated down to C soil layer,
as provided on plan
® Size of SAS excavated as per plan
® Title 5 sand installed, if specified on plan
NIA 40 Mil HDPE barrier installed
® Laterals installed and ends connected to
header (and vented if impervious material
above)
® Elevations of laterals and chambers installed as on
approved plan
NIA Retaining wall (boulder 1 concrete 1 timber/ block)
❑ Final cover as per plan
Comments: C33 sand, 60x20 with overdig
SOIL ABSORPTION SYSTEM (Presby)
® Brand and Model of Chamber: Presby Enviro-
Septic
® Number of pipes per row: 5
® Number of rows (trenches): 7
Comments: Total Pipes = 35
FINAL GRADE
® Loamed
® Seeded
® Cover per plan
Comments.-
DOCUMENTS
omments:DOCUMENTS NEEDED
X Certification of Installation Form submitted
By engineer and signed and dated by
Engineer and installer
X As-Built Plan
BM = 98.64
HR = 6.45
HI = 105.09
SYSTEM ELEVATIONS
ROD AS-BLT INVERT DESIGN INVERT
ELEVATION ELEV ELEV
Benchmark
Building Sewer OUT 7.20 97.54 98.00
Septic Tank IN 7.36 97.38 97.63
Septic Tank OUT 7.63 97.11 97.38
Pump Chamber IN 7.66 97.08 97.32
2° Pump Chamber OUT 8.01 95.91 97.07
2" Distribution Box IN 3.61 101.31 101.27
Distribution Box OUT 3.58 101.16 101.10
Lateral 1 TOP 3.75
Lateral 1 INVERT 100.99 100.93
Lateral 2 TOP 3.75
Lateral 2 INVERT 100.99 100.93
Lateral 3 TOP 3.75
Lateral 3 INVERT 100.99 100.93
Lateral 4 TOP 3.75
Lateral 4 INVERT 100.99 100.93
Lateral 5 TOP 3.75
Lateral 5 INVERT 100.99 100.93
Lateral 6 TOP 3.75
Lateral 6 INVERT 100.99 100.93
Lateral 7 TOP 3.75
Lateral 7 INVERT 100.99 100.93
Bottom of Bed/Chamber 100.41 100.35
CRITICAL SETBACK DISTANCES
Mark those distances checked in the field against the design plan and regulatory
setback
Tank SAS Sewer
® Property line 10 10 --
M Cellar wall 10 20 --
® Inground pool 10 20 --
M Slab foundation 10 10 -�
M Deck, on footings, etc 5 10 --
M Waterline 10 10 101
® Private drinking well 75 1002 50
M Irrigation well 75 100
M Surface Water 25 50
M Bordering Vegetated Wetland ,
Salt Marsh, Inland/Coastal Bank' 75 100
® Wetlands bordering surface
water supply or trib. (in Watershed) 150 150
® Trib, to surface water supply 325 325
M Public well 400 400
M Interim Wellhead Prot. Area
M Reservoirs 400 400
M Drains (wat. supply/trio.) 50 100
® Drains (intercept g.w.) 25 50
® Drains (Other)Foundation 10 (5) 20(10)
M Drywells 20 25
1 Suction line 222(2)
2 100 feet is a minimum acceptable distance and no variance is allowed for a lesser distance (NA 5.02).
3 As defined in 310 CMR 10.55, 10.32, 10.54,and 10.3 0,respectively,pursuant to 15.211(3), also by NA
wetland bylaws